The act of deep throating a dick far enough that the testicles hang down ones chin such as a Turkey Wattle (the testicle like skin hanging from the neck of a Turkey). The sound of gobbling may or may not be involved but is usually preferred in the event of a true Gobble Job.

"I thonight I heard turkeys outside my house last night so I ran out expecting to find a flock on my lawn...then I remembered my roommate telling me about this awesome oral sex trick his girl friend had learned. He called it a Gobble Job..."